Air-cooling apparatus.



2 SHEETS-SHEET 1.

PATENTBD AUG. 6, 1907.

0. STERKBL.

AIR COOLING APPARATUS. APPLIOATION FILED ma. ze, 190'?.

[M070: Qr.

i PATENTED AUG. 6, 1907.

0. STERKEL. AIR COOLING APPARATUS.

APPLICATION FILED FEB. 23, 1907.

2 SHEETS-SHEET 2.

OTTO STERKEITI OF RAVENSBURG, GERMANY.

AIR-COOLING APPARATUS. v

Specication of Letters Patent.

Patented Aug'. 6, 1907.

Application mea rbruaryzs, 1907. serial No. 359,029.

To Il whom it may concern:

lie it known that I, OTTO STERKEL, a subject of the .Emperor of Germany,residing at Ravensburg, Germany, have invented certain new and usefulImprovements in Air-Cooling Apparatus, of which the olloW- ing is aclear, ull, and exact description.

The object o the present invention is an air cooling device in which theair is cooled by passing through a column of ice contained in a bagwhich is gradually contracted by means of suitably arranged weights inproportion to the melting of the ice in such a way that the column ofice retains for a considerable time ap-v Vcooling apparatus. l

According to Fig. l, d is the bag containing/'the ice. l

On diagonally opposite points the bag is suspended from chains p guidedover suitable rollers q arranged in fixed positions, the ends of thechains bearing weights r.. In its bottom the bag has a small opening fand cori responding to this opening a partition e ot the casing b of theair cooler a is provided witha hole covered by wire netting. Throughthis hole the air is drawn and the ice water flows off. To prevent thewater from dripping into the mouth of the pipe m deflecting plates glareprovided deflecting the ice-water into the body of the casing b. Thewater is drawn ofi through a-spigot near the bottom of the casing b.This bottom h is the top ot a support c mounted upon rollers l'. Inproportion to the melting of the ice the bag is drawn together by theWeights r so that the column of ice in the bag approximately retainsitsy original height and offers thus for a considerable length ot time apassage for the air of the same length. Under the cooler a pipe mprojecting from a fan l into the casing b is arranged which draws theair through the cooler and leads it through a pipe o to any suitableplace of consumption.

If it is desired to pack the ice in the bag so tight that the air can*only pass with diiculty, perforated hollow bodies Sl S may be insertedinto the ice, see Fig. 3, which greatly facilitate the passage of theair. `f

The Figs. 4, 5 and 6 show modified forms of the air cooling apparatus.According to Fig. 4 a fan is used oi the well known type, the mouthofthe pipe m is arranged under the ice bag and the air blown in escapesthrough a bent pipe n at the top of the cooler. Ac'- cording to Fig. 5the fan draws the air abovevthe ice bag. According to Fig. 6 the air isforced bya an from the top into the ice bag and escapes through the pipem .arranged below the bag.

The air cooler in its customary form is closed at the top by a cover 1rhaving an opening` to admit the air to 'befcooled AHaving thus describedmy invention what I claim is An air cooling apparatus comprising areceptacle, a bag:

forzcontaining cejfchains from which the bag is suspended In testimonywhereof I atiix my signature.

OTTO STERKEL.

ln the presence of- ERNEST ENTENMANN, WM. HAHN.

